Boiler-lubricator.



J. 0. LEE.

BOILER LUBRICATOB. APPLICATIQN FILED OCT. 1. 1914.

Patented June 6, 1916.

Inventor Witness es Attbrneys THB COLUMBIA PLANOURAPH co., WASHXNGTON, D. x

FFTCE.

JOE OTIS LEE, 0F GREENVILLE, MISSISSIPPI.

BOILER-LUBRIGA'IOR.

Specification of Letters Patent.

Application filed October 1, 1914. Serial No. 864,496.

T 0 all whom it may concern:

Be it known that I, J 0E OTIS LEE, a citizen of the United States, residing at Greenville, in the county of Washington and State of Mississippi, have invented a new and useful Boiler-Lubricator, of which the following is a specification.

The present invention relates to improvements in a boiler lubricator, one object of the present invention, being the provision of a lubricant supplying device adapted to be interposed between the injector and the boiler, whereby the effect of the injector in forcing or pumping water to the boiler, will draw from the present lubricator a certain amount of lubricant so that incrustation of the boiler is prevented and at the same time, a sufficient amount of oil is supplied to the upper surface of the water to prevent foaming and boiling over.

A further object of the present invention, is the provision of a simple, inexpensive and easily installed device of this character, which is readily attached between the injector and the boiler, to properly supply the lubricant thereto, and in sufficient quantities to produce the desired result and permit of the use in the boiler of hard water without bad effect upon the boiler.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the com bination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings is illustrated the present lubricator, the oil receptacle being shown in longitudinal section, while the check valves in the pipe leading from the injector to the boiler are also shown in section.

Referring to the drawings, the numeral 1 designates the oil receptacle, which is a cylindrical member, adapted to be disposed horizontally, there being attached at one end thereof, the two nipples or pipes 2 and 3, which have interposed therebetween, the sight glass 4, so that the level of the con,- tents within the receptacle 1 may be'readily discerned.

A valved pipe 5 is connected to the reservoir 1 so that the cup 6 which is carried thereby will constitute a means for directing the lubricant into the receptacle 1 when filling the receptacle, a valved pipe 7 being also connected to the tank 1 so as to permit of the venting of the tank during the filling operation.

Leading from the tank 1 is a pipe 8, which has interposed therein a manually controlled valve 9, said pipe 8 being in communication with the pipe 10, which as indicated is interposed between the injector and the boiler, indicated by such words upon the drawings. Connected in the pipe 10 is the check'valve 12, adjacent the connection thereof to the injector, while at the opposite end is the check valve 13, such valves being so arranged that the flow of water through the check valve 12 will be permitted toward the boiler, but will be prevented from the opposite direction, while the check valve 13 will permit the flow of water to the boiler but not toward the connection of the pipe 8 to the pipe 10. It will thus be seen that, the tendency of the flow of water through the pipelO will produce a vacuum within the pipe 8 and thus cause the lubricant within the tank 1 to be withdrawn and be carried by the water to the boiler.

It is intended that the present device may be connected for use with a battery of boilers or with a single boiler as may be found expedient, and that the tank 1 be of sufficient size to supply the necessary quantity for-this purpose. 7

Connected to the under side of the tank 1 is a valved outlet 14 so that the tank may be properly emptied when found desirable.

It has been proven in practice with the present device, that the entire surface of the water within the boiler will be covered by the lubricant and thus will stop the water from foaming, and thus relieve the boiler of a great danger, for it has been found where soft or' foaming water is used, that the water column often indicates the boiler full of water when it is dry, thus resulting in damage to the tubes due to the heat thereon and in many cases will be the cause of an explosion when the water is permitted to enter the boiler. i

The present device can also be used for injecting compounds in the boiler but is more especially designed for injecting lubricant in sufliciellt quantities to cover the up- Patented June 6, 1916.

per surface of the Water Within the boiler,

although the present device Will also prevent incrustation or scaling of the tubes.

When the valves 5 and 7 are open, during the filling operation, and When the valve 9 is closed, a portion of the lubricant from the receptacle 1 is trapped in the horizontal pipe 10 between the valves 12 and 13. The valve 12 prevents the lubricant thus trapped from flowing backvvardly into the injector line when the pressure is ofi the injector line or when the same is empty.

What is claimed. is:

In a device of the class described, a receptacle provided with a valve controlled filling opening and With a valve controlled vent; a vertical pipe communicating with the top of the receptacle; a cut off valve in the pipe; a horizontal pipe communicating intermediate its ends with the vertical pipe; and

check valves, in the horizontal pipe on opposite sides of the vertical pipe, the horizontal pipe being adapted to constitute a part of an injector line to a boiler, the cut ofl valve being adapted to be closed, and the check 25 JOE OTIS LEE.

Witnesses:

H. W. BERGMAN, H. G. DOTTING.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Emerita. Washington, D. 0. 

